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Lemma
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7 votes

"Show" that the direction cosines of a vector satisfies...

5 votes
Accepted

Let $A\in$ $M_{2015x2015}$ prove that $A^2-A\neq I$

4 votes

Linear algebra for modern differential geometry( and other types of modern geometry, like analytic, complex and algebraic)

3 votes
Accepted

Solving $Ax = 0$ with Singular Value Decomposition

3 votes

Why does row reduction not change the dependence relation between columns?

2 votes
Accepted

Transforming vector field into spherical coordinates. Why and how does this method work?

2 votes

Is there a way to solve an arbitrary ODE of first order?

2 votes
Accepted

Transition matrix of polynomial.

2 votes

row space of A is equal to the row space of rref?

2 votes

Inverse matrix of sin and cos being multiplied.

2 votes

If $Ax = O$ has only one solutions, the columns of A span R?

1 vote
Accepted

How do I find orthonormal basis of $U$?

1 vote
Accepted

Basis which makes TWO linear transformation diagonalised at once

1 vote
Accepted

Find a vector such that $L(x)=<x,v>.$

1 vote

Let $a>0$. Show that $\int_0^\pi {dx\over a+\sin^2(x)}={\pi\over \sqrt{a(a+1)}}.$

1 vote

Finding a line orthogonal to another line

1 vote

How to determin: the matrix of a linear map, nullity and rank?

1 vote

Two points to form a line, how to find the distance between the line and a third point?

1 vote

proving n linearly independent vectors are generating

1 vote

How to find the projw(x)

1 vote

Question about the constraint in Laplacian eigenmaps

1 vote

A purely algebraic proof of $\vec{a}\cdot \vec{b} = \lVert\vec{a} \rVert\lVert\vec{b} \rVert\cos(\theta)$

1 vote

Let $f$ be a function such that $\int_{6}^{12}f(2x)dx=10$, demonstrate that $\int_{12}^{24}f(t)dt=20$

1 vote

Prove that a vector is in the span of a linearly independent set of vectors iff coefficients = 0

1 vote

Geometric Multiplicity

1 vote

When $A=BC$ where $B$ is a singular, can we find an explicit form of $C$?

1 vote

Good SAT learning resources?

0 votes

If we know nullspace of matrix, how to find reduced row echelon form of that matrix?

0 votes

Linear Transformation (linear algebra)

0 votes

Linear Algebra Terminology Trouble